The super-GUT CMSSM revisited
The super-GUT CMSSM revisited
复制标题
DOI：
10.1140/epjc/s10052-016-4437-6
复制
发表时间：
2016-08
期刊：
影响因子：
--
通讯作者：
J. Ellis;J. Evans;A. Mustafayev;N. Nagata;K. Olive
中科院分区：
文献类型：
--
作者：
J. Ellis;J. Evans;A. Mustafayev;N. Nagata;K. Olive
我们重新审视最小超对称SU（5）大统一（GUT）模型，其中最小超对称标准模型（MSSM）的软超对称破缺参数在超对称规范耦合统一尺度之上的某个输入尺度上是普适的。在约束MSSM（CMSSM）中，我们假设标量质量和高吉诺质量有共同的值，和，分别为，三线性软超对称破缺参数。超越以往的研究，这样一个超级大统一体CMSSM的情况下，我们探讨了质子寿命的下限和希格斯质量的LHC测量所施加的约束。我们发现的区域，和参数的SU（5）超势是兼容的这些和其他唯象约束，如冷暗物质的密度，我们假设是由最轻的中性伴子提供。通常情况下，这些允许的区域出现在多TeV的区域，对于合适的未知SU（5）GUT尺度相位和超势耦合值，并与超对称希格斯真空期望值的比率。
We revisit minimal supersymmetric SU(5) grand unification (GUT) models in which the soft supersymmetry-breaking parameters of the minimal supersymmetric Standard Model (MSSM) are universal at some input scale,, above the supersymmetric gauge-coupling unification scale,. As in the constrained MSSM (CMSSM), we assume that the scalar masses and gaugino masses have common values,and, respectively, at, as do the trilinear soft supersymmetry-breaking parameters. Going beyond previous studies of such a super-GUT CMSSM scenario, we explore the constraints imposed by the lower limit on the proton lifetime and the LHC measurement of the Higgs mass,. We find regions of,,and the parameters of the SU(5) superpotential that are compatible with these and other phenomenological constraints such as the density of cold dark matter, which we assume to be provided by the lightest neutralino. Typically, these allowed regions appear forandin the multi-TeV region, for suitable values of the unknown SU(5) GUT-scale phases and superpotential couplings, and with the ratio of supersymmetric Higgs vacuum expectation values.